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NEXTON

Builds digital projects for large French firms

Back-End Developer .NET - Convergence Sitemaps & SEO

Full-Time
No salary listed
Senior
Bachelor's
Île-de-France, France
In Person
Software EngineeringBackend Engineering

About the job

Requirements
  • A higher-education qualification at BAC+3/5 in computer science or equivalent is required.
  • At least 5 years of software development experience, including at least 3 years in technical design and .NET backend development.
  • Confirmed mastery of .NET technologies.
  • Demonstrated experience and familiarity with sitemaps and multi-territory site structures.
  • Knowledge of AWS, EKS, and Kubernetes technologies.
  • Mastery of n-tier architectures, REST APIs, and RDS MySQL.
  • Practical experience with Jira, GitLab, Confluence, and CI/CD pipelines.
  • Knowledge of Agile development and continuous integration best practices, including unit testing and CI/CD.
  • Excellent interpersonal skills for frequent interaction with technical and business teams.
  • Ability to understand business needs and implement them rigorously in development.
  • Ability to adapt and work in a technically rich and complex environment.
  • Fluent English is required for meetings conducted in English.
Responsibilities
  • Design a modern, scalable, and resilient architecture that implements business needs.
  • Write specifications and documentation for development work.
  • Scope and specify DevOps work, including Infrastructure as Code.
  • Develop in .NET and perform unit testing and integration.
  • Implement monitoring components.
  • Manage project coordination and communicate with internal clients, acceptance testing, and operations teams.
  • Manage deployment and production follow-up.
  • Analyze the architecture used to generate sitemaps for multi-territory websites and propose and implement a converged sitemap-generation approach.
  • Integrate sector developments, including Google SEO APIs and interactions with large language models and generative engine optimization, and improve regionalization of search indexing.
Desired Qualifications
  • Proficiency in Go or React.

About the company

NEXTON plans and builds digital projects for large French companies and online businesses, combining digital strategy with software development and marketing. Its teams cover product management, user-experience design, agile delivery and data work, and build websites, mobile applications and customer communications. Clients pay for specialist consultants assigned to their teams or for projects delivered by NEXTON's own agency. The agency combines designers, developers and marketing specialists to handle projects from planning and interface design through development and delivery. Founded in Paris in 2011, NEXTON is headquartered there at 5-7 rue Saint-Fiacre and operates across France.

Company Size

N/A

Company Stage

N/A

Total Funding

N/A

Headquarters

Paris, France

Founded

2011

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Simplify's Take

What believers are saying

  • NEXTON recruits entirely on permanent employment contracts, providing a salaried path into client assignments.
  • NEXTON consultants joined client Veolia at Google's enterprise-AI event in March 2026, studying tools alongside customer teams.
  • NEXTON's client portfolio spans rail, telecom and insurance through SNCF, Orange and AXA.

What critics are saying

  • NEXTON's Montpellier Java role pairs new banking features with incident analysis and corrective maintenance, per October 2026 posting.
  • French demand exposure: Numeum reported 1.8% contraction for 2025 IT services in December 2025; NEXTON's six offices are French.
  • NEXTON's Paris customer marketing lead handles mobile campaigns and supervises an apprentice, per its October 2026 posting.

What makes NEXTON unique

  • NEXTON runs an in-house digital factory in rural Saint-Augustin, extending project delivery beyond metropolitan offices.
  • Figma lists NEXTON as a service partner for design-system implementation, migration and team training.
  • NEXTON's seven employee-run communities connect mentoring, software, design, AI/data, sustainability, agile product work and sport.

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Benefits

  • Commuter Benefits
  • Professional Development Budget